Step-by-step explanation:
it is unclear what is meant by f1 and f2. do you mean f' and f'' ?
I don't think so, as you mentioned algebra 2.
so, is it just a way to identify different functions ? like function 1 vs. function 2 ?
if that's the case, then both functions represent lines.
both lines go through the origin.
but as their slopes are of same size but different sign, one is actually the mirrored version of the other one (mirrored around the x-axis).
FYI - the created visible pattern (4 lines emanating from the origin) would also indicate that the visible pattern (but not the functions) is also mirrored around the y-axis.
